Satellite-borne phased-array antenna temperature deformation calibration system, measurement system and method

Abstract

The invention discloses a satellite-borne phased-array antenna temperature deformation calibration system, a measurement system and a method. The calibration system comprises satellite-borne phased-array antenna frame bodies under different working conditions, multiple sensor assemblies, an optical measurement module and a main control module, wherein the multiple sensor assemblies are located on the satellite-borne phased-array antenna frame bodies, and each sensor assembly is used for collecting parameters of the position on the satellite-borne phased-array antenna frame body corresponding to the sensor assembly under different working conditions; the optical measurement module is used for measuring deformation displacement data of the satellite-borne phased-array antenna frame bodies under different working conditions; and the main control module is connected with each sensor assembly and the optical measurement module, and is used for obtaining a preset corresponding relation between the parameters and the deformation displacement data of the satellite-borne phased-array antenna frame body according to the parameters of each connecting part under different working conditions and the deformation displacement data of the satellite-borne phased-array antenna frame body, so that the temperature deformation of the satellite-borne phased-array antenna can be measured in real time.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of spaceborne antennas, in particular to a temperature deformation calibration system, measurement system and method for a spaceborne phased array antenna. Background technique [0002] Large-scale spaceborne phased array antennas in the space environment, due to solar radiation or device heating, produce uniform or uneven temperature changes, and the antenna structure frame will be deformed to a certain extent. Structural deformation may affect system detection or imaging. With the rapid development of aerospace technology, the requirements for antenna accuracy are getting higher and higher. At the same time, the size of the antenna is getting larger and the system integration is getting higher and higher, which is easy to cause the heat flux of the antenna to rise. Structural deformation is becoming more and more serious, and the problem of system performance degradation will become ...

AI Technical Summary

Problems solved by technology

[0003] At present, most spaceborne antennas rely on the design to ensure that their temperature deformation is less than a certain range to meet the needs of the system. Usually, it is achieved by increasing the structural stiffness or active and passive thermal control. However, increasing the structural stiffness will increase the structural mass and increase the Launch cost, active and passive thermal control can effectively alleviate the temperature variation and its unevenness at the input end, but it cannot solve the problem in essence

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